资源描述:
《桥墩设计计算.doc》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、兰州交通大学毕业设计(论文)摘要随着我国社会的发展与进步和人民的生活水平的日益提高,交通的便利程度和安全性得到了人们的广泛关注,桥梁又是现代交通中不可缺少的组成部分,我国桥梁工程无论在建设规模上,还是在科技水平上,均已跻身世界先进行列。本设计为S17线金昌至永昌高速公路河东庄大桥(两联4×25m预应力混凝土连续箱梁)下部结构设计,在设计过程中,参考了诸如桥梁工程、土力学、桥涵水文、材料力学、专业英语等相关书籍和文献,根据《公路桥涵设计手册》系列丛书,依照交通部颁发的有关公路桥涵设计规范(JTG系列)拟定设计而成。设计中考虑了各种尺寸与材料的
2、选用符合规范中对强度、应力、局部承压强度的要求,并且产生在规范容许范围内的变形,使桥梁在正常使用的情况下能够达到安全,稳定和耐久的标准。在可预期偶然荷载下仍能达到基本正常使用的标准。设计时还充分考虑河东庄大桥所处区域的地质和水文条件,既保证符合规范要求,同时保证因地制宜并且便于施工和维护,并且兼顾桥梁本身的美观性与社会经济性,既要设计合理,又要起到良好的社会经济效益。关键词:河东庄大桥下部结构桥墩桥台美观性经济性30兰州交通大学毕业设计(论文)AbstractWiththedevelopmentandprogressofoursociety
3、andpeople'srisinglivingstandards,transportationconvenienceandsafetytogetthewideattentionofpeople,thebridgeisalsoanindispensablepartofmoderntransportation,bridgeworksinChinaintermsofconstructionscale,orinthelevelofscienceandtechnology,havebeenamongtheadvancedranksintheworld
4、.ThedesignfortheS17lineofJinchangtoYongchangExpresswayEastVillageBridge(double4×25mprestressedconcretecontinuousboxgirder)substructuredesign,duringthedesignprocess,thereferencesuchasbridgeengineering,soilmechanics,materialmechanics,hydrologyofbridgeandculvert,Englishandoth
5、errelatedbooksandliterature,accordingtothe"manual"designofhighwaybridgesandculvertsseries,inaccordancewiththeMinistryofCommunicationsissuedbytherelevantdesignspecificationsforhighwaybridgesandculverts(JTGSeries)protocolisdesigned.Designconsiderationofseniorhighschoolentran
6、ceexaminationofvarioussizesandmaterialselectioninconformitywiththespecificationsofstrength,stress,localbearingstrengthrequirements,andproducedinstandardallowabledeformationofthebridgeinthenormaluse,canachievethesafety,stabilityanddurabilityofthestandard.Intheexpectedaccide
7、ntalloadscanstillachievethebasicnormalusestandard.ThedesignalsofullyconsidertheHedongVillageBridgewhereregionalgeologicalandhydrologicalconditions,bothtoensurecompliancewithspecifications,whileensuringthatthesuitone'smeasurestolocalconditionsandeasyconstructionandmaintenan
8、ce,andtakeintoaccountthebridgeitselfappearanceandsocialeconomyshouldnotonlyreasonabledesi